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Cited by 177Medication Adherence and CompliancePharmacy and Medical PracticesSurvey Methodology and Nonresponse

The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

Correlation between adherence rates measured by MEMS and self-reported questionnaires: a meta-analysis

Open access
Shi, Lizheng, Liu, Jinan, Fonseca, Vivian, Walker, Philip, Kalsekar, Anupama, Pawaskar, Manjiri·2010·Health and Quality of Life Outcomes
DOI 10.1186/1477-7525-8-99PMC PMC2944346
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Abstract

PURPOSE: It is vital to understand the associations between the medication event monitoring systems (MEMS) and self-reported questionnaires (SRQs) because both are often used to measure medication adherence and can produce different results. In addition, the economic implication of using alternative measures is important as the cost of electronic monitoring devices is not covered by insurance, while self-reports are the most practical and cost-effective method in the clinical settings. This meta-analysis examined the correlations of two measurements of medication adherence: MEMS and SRQs. METHODS: The literature search (1980-2009) used PubMed, OVID MEDLINE, PsycINFO (EBSCO), CINAHL (EBSCO), OVID HealthStar, EMBASE (Elsevier), and Cochrane Databases. Studies were included if the correlation coefficients [Pearson (rp) or Spearman (rs)] between adherences measured by both MEMS and SRQs were available or could be calculated from other statistics in the articles. Data were independently abstracted in duplicate with standardized protocol and abstraction form including 1) first author's name; 2) year of publication; 3) disease status of participants; 4) sample size; 5) mean age (year); 6) duration of trials (month); 7) SRQ names if available; 8) adherence (%) measured by MEMS; 9) adherence (%) measured by SRQ; 10) correlation coefficient and relative information, including p-value, 95% confidence interval (CI). A meta-analysis was conducted to pool the correlation coefficients using random-effect model. RESULTS: Eleven studies (N = 1,684 patients) met the inclusion criteria. The mean of adherence measured by MEMS was 74.9% (range 53.4%-92.9%), versus 84.0% by SRQ (range 68.35%-95%). The correlation between adherence measured by MEMS and SRQs ranged from 0.24 to 0.87. The pooled correlation coefficient for 11 studies was 0.45 (p = 0.001, 95% confidence interval [95% CI]: 0.34-0.56). The subgroup meta-analysis on the seven studies reporting rp and four studies reporting rs reported the pooled correlation coefficient: 0.46 (p = 0.011, 95% CI: 0.33-0.59) and 0.43 (p = 0.0038, 95% CI: 0.23-0.64), respectively. No differences were found for other subgroup analyses. CONCLUSION: Medication adherence measured by MEMS and SRQs tends to be at least moderately correlated, suggesting that SRQs give a good estimate of medication adherence.

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Figure 1 Flow Chart of Articles Identified and Evaluated during the Study Selection Process.
Figure 1 Flow Chart of Articles Identified and Evaluated during the Study Selection Process.CC BY · PubMed Central
Figure 2 Correlation coefficients between adherences measures by MEMS and self reported questionnaires and corresponding 95% confidence intervals by study and pooled.
Figure 2 Correlation coefficients between adherences measures by MEMS and self reported questionnaires and corresponding 95% confidence intervals by study and pooled.CC BY · PubMed Central

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  1. Morisky DE Nonadherence to medical recommendations for hypertensive patients: Problems and potential solutions Journal of Compliance in Health Care 1986 1 1 5 20

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Metadata

Authors
Shi, L., Liu, J., Fonseca, V., Walker, P., Kalsekar, A., & Pawaskar, M.
Affiliations
  • Tulane University (US)
  • Eli Lilly (United States) (US)
Corresponding author
Shi, Lizheng
ORCID
Venue
Health and Quality of Life Outcomes
Publisher
Springer Science and Business Media LLC
Published
2010
Volume
8
Issue
1
Pages
99
ISSN
1477-7525 (ISSN-L)
DOI
10.1186/1477-7525-8-99
PMC
PMC2944346
OpenAlex
W2159285055
Cited by
177
References
42
Citations by year
2026: 4 · 2025: 3 · 2024: 4 · 2023: 6 · 2022: 12 · 2021: 8 · 2020: 10 · 2019: 23 · 2018: 19 · 2017: 10 · 2016: 12 · 2015: 8 · 2014: 22 · 2013: 15 · 2012: 11
FWCI
2.26
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Health and Quality of Life Outcomes (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Topics
  • Health Sciences › Medicine › Family Practice › Medication Adherence and Compliance
  • Health Sciences › Health Professions › Pharmacy › Pharmacy and Medical Practices
  • Social Sciences › Sociology and Political Science › Survey Methodology and Nonresponse
Keywords
medication adherence, medication event monitoring system, self-report questionnaire, electronic medication monitoring
MeSH terms
Assessment of Medication Adherence, Cost-Benefit Analysis, Humans, Psychometrics, Surveys and Questionnaires, Drug Monitoring, Medication Adherence, Self Report

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